Harvey Tool 36275-C3 Corner Radius End Mill 1/4 in 4 Flute

Product Description

The HARVEY TOOL 36275-C3 is a solid carbide corner radius end mill designed for precision milling in demanding materials including steel, stainless steel, cast iron, and non-ferrous metals. It carries a 1/4 inch mill diameter, a 1.90 mm (0.0750 inch) corner radius, and four right-hand spiral flutes optimized for both roughing and finishing operations. The AlTiN PVD coating provides thermal resistance and extended tool life at elevated cutting temperatures. With a 3/4 inch length of cut and a 2.5 inch overall length on a straight cylindrical shank, this tool fits standard toolholders used on CNC machining centers and manual mills.

This end mill belongs to the Harvey Tool Miniature End Mills - Corner Radius - Stub and Standard series. It is suited for applications requiring a controlled corner radius blend in tight-tolerance pockets, slots, and profiling operations on steel, stainless steel, cast iron, non-ferrous metal, and composite workpieces. Its center-cutting geometry allows plunge entry. The normal pitch and fixed helix design make it a reliable choice for production environments where consistent chip evacuation and finish quality are required in small-diameter toolpaths.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• AlTiN PVD coating extends tool life in high-heat cutting environments including steel and stainless steel
• 1.90 mm corner radius (tolerance: plus or minus 0.0010 inch) reduces stress concentration and improves surface finish at pocket corners
• Center-cutting, right-hand flute geometry supports both plunge and peripheral milling
• Four right-hand spiral flutes with normal pitch for balanced roughing and finishing material removal
• Straight cylindrical shank compatible with standard ER collets and precision toolholders

Compatibility

Designed for use with standard CNC toolholders and ER collet systems accepting a 1/4 inch straight cylindrical shank. Suitable for machining steel, stainless steel, cast iron, non-ferrous metals, and composite materials as noted in the Harvey Tool Miniature End Mills - Corner Radius - Stub and Standard series.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Secure the shank fully within the toolholder collet to the recommended gauge-line depth before tightening. Verify spindle runout with a test indicator before cutting, as runout directly affects corner radius accuracy and tool life on small-diameter carbide end mills. Do not exceed the tool's rated length of cut when setting axial depth of cut parameters.